[petsc-users] malconfigured gamg

[Jed Brown]

Barry Smith <bsmith at mcs.anl.gov> writes:

>   Ok, how about just checking there is at least one smoothing on the finest level? This would catch most simple user errors, or do you know about oddball cases with no smoothing on the finest level?

No idea; what if it's inside a PCComposite SPECIAL and the user only
wants it to provide only a coarse grid correction?
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